Resilient holding means



March 19, 1935. BAlLEY 1,994,456

REsILI'ENT HOLDING MEANS Original Filed July 9, 1927 lllll :H II

W W5 W/RW Wg 9 Lgx 9 I 3% SQ iQwr/M Patented Mar. 19, 1935 uuirsogsrfnrss' PATENT 'oFF cE Lehigh Company, Fullerton, Pa., a corporation fef ht te Application July 9, 1927, Serial No. 204,503 i Renewed August-.9, 1932 2 Claims. (01. 122-6) By the present invention two members can be posite cut-away corners. It will be. obvious that drawn toward each other under a yielding tenwhen the washers are made square and bent, as $101!. and can be moved short distances toward and described, a large amount of metal will remain t v from each other While still maintaining the across the central portion even when the hole yielding tension on the members. In order to i out out, thus giving great strength to resist 5 make the invention readily understood and to b d The washers may, however, be bent or show a practical embodiment of the same, I will curved t right angles to the way that has been describe it in connection with tile or blocks that shown d ibed, a ld i fir uty din engagement w In using the invention for keeping the tile 6 Water tuhhs t make up a Water cooled flimace in place, the bolt 14 isscrewed; in a sufficient dis- 10 We11, b11t it is e be understood that the lnventance to cause the washer 16 to be partially tion is not'restricted to s particular straightened out, thus placing the bolt under 111V eht1h t uhderstood f the tension but still making it possible for the block scrlptloh i cohhectloh Wlth h accompahylhg 6 and the saddle 10 to move relative to each other drawing illustrating an embodiment of the in- 15 vention in which Fig- 1 is a from View p y due to expansion and contractmn. As the blocks broken away showing an application of the in- 2 gr frtom ogher the washer 16 W111 vention; Fig. 2 is a section along line 2-2 of S 1mg en on so as o ecome i q a nearly fiat due to the fact that only its opposite Fig. 1, and Fig. 3 1s a perspective view of a spring 2,0 Washer corners contact with the supporting surfaces,

In the drawing reference character 5 indi- 1f the-blocks 6 and the Saddles 1 move cates water tubes that may be installed in the Shghtly toward h other the central parts of walls of a boiler furnace and be connected to the the Washer 16 W l Spring outwardly, thus keepwater circulation system of the boiler for the purmg the bolts under tension and maintaining t 5 pose of keeping the walls cool. Metal blocks 6 parts in firm Contact with the tubes 5. that are provided with refractory material 7 on I claim! 7 1 r the furnace sides thereof have threaded holes 8 to 1h fluidheat exchange apparatus, h W 1 receive screw-threaded bolts, and the ends of the Spaced fluid Conducting tubes constituting 21 blocks 6 are rounded as indicated at 9 to fit closely hace wall structure, heat cfmducting b o ks 0 and have an extended contacting surface with bridging the tubes and'arifahged in proximity the tub 5, s so as to present a furnace wall shielding the Metal addl Upholding members 10 that are tubes from the radiant heat of the furnace, tube provided with tr th i s 1 and have seat portions on each block closely fitting the rounded portions 12 t fit against t tubes 5 tubes over their innermost surfaces with referhave holes 13 intermediate their ends through enee t0 the furnace to an extent of about 9 n 35 which threaded st d bolt 14 having heads 15 each tube, intermediate block portions on each extend, block located between the tube seat portions and Spring washers 16 are interposed between the extending between the mid-portions 0 adj ent heads of the bolts 15 and the flat surfaces of tubes, backing members d n t e tubes On 40 t holding members 10 Surround th h l 13 their outer sides with reference to the furnace 40 These washers are preferably square in shape and and eXtending between adjacent tubes to p have their opposite corners cut away a i tions in close proximity to the intermediate pordicated at 1'7, although other shapes may tions of the blocks, tension members extending be used. The washers are made of a metal that t u h h backing members intO the blOOkS will remain resilient even after being heated to i o t e d engagement W the blocks as 45 considerably elevated temperatures. Special alo provide large and Wide masses of the block 011 loysteel that will hold its resiliency at temperaopposite sides of the tension member and in contures of 600 or 700 F. have been found to be tact with the mid-portions of the tubes, and heat quite satisfactory in certain installations. Each resisting resilient expansion take-up devices in- 50 washer is bent so that itsopposite corners 17 will terposed between the u r ends of the tension 50 rest upon a flat surface of a saddle 10 while the members and the backing members to maintain middle portion through which the hole 18 extends yieldingly an adequate force pressing the blocks is bent downwardly, or the washer is curved in into good heat transfer contact with the tubes, one direction so that the portion intermediate said devices transmitting said tension force from the edges is offset from the line joining the opthe tension members to the backing members at 55 the furnace to the extent of a major portion of a quadrant of a cross section of the associated tubes, intermediate block portions on each block located between the tube'seat p'ort'ions and extending between the mid-portions of adjacent tubes, backing members bridging the tubes on their outer sides with referenceto the furnace tions in close proximity to the intermediate por tions of the blocks, tension members extending and extending between adjacent tubes to posithrough the backing members and rigid with the blocks so as to provide large and wide'inasses of the blocks on opposite sides of the tension member and in contact with the mid-portions of the tubes, and "heat resisting resilient expansion.

take-up devices interposed between the outer ends of the tensionmembers and the backing members to maintain yieldingly an adequate force 710' pressing. the blocks into good heat transfer contact with the tubes, said devices transmitting said j tension force from the tension members to the backing members at positions closely adjacent the tubes witha beam action.

ERVIN' G. BAILEY. 

